Thin-place-detecting mechanism for looms.



v S. D. EUBANKS. THIN PLACE DETECTING MECHANISM FOR LOOMS.

APPLICATION TILED APB- 1, 1909.

Patented May 3, 1910.

E mm 0 C 27 i p j -2 i Ewe/7%?! eizszlguzcaak j 1"?- UNITED STATES PATE MAssAoHusE'rrs,

THIN-PLACE-DETECTING MECHANISM FOR LOOM S.

To all whom, it may concern:

Be it known that I, Sarnns D. EUBANKS, a citizen of the United States, and resident of lVest Durham, county of Durham, State of North Carolina, have invented an Improvement in Thin-Place-Detecting Mechanism forLooins, ofwhich the following de scription,.in connection with the accompanymg drawing, is a specification, like charaeters on the drawing representing like parts. I pivotally This lnvention has for 'its ob ect the pro I duction -of.'a novel and simple mechanism mg notch in the the s ring in for detectinggthin places or'streaks in the cloth being woven on a loom, the mechanism being so constructed that when such a thin place' is detected the loom is stopped automatically.

The various novel'feat-ures of my inven 'tion will be fully described in the subjoined specification and particularly pointed out in the following claims,

F i re 1 1s a top plan .view 'of a portion of a Id om with one practical embodiment of my present invention applied thereto; Fig. is an enlarged side elevation and section, on. the line 2-2, Fig. 1, looking toward the right.

Referring to the drawings the lay A, breast-beam B, shipper O,knock-oif lever D to release the shipper from its usual holdlate B, the temple E having a shank E s idably mounted in a stand F and projected by the usual spring (not shown) and the bracket G for the templegtrand, adjustably mounted on a guide-plate fi all of well known and and o crate in a skills in the art.

The temple has the usual E Fig. 2, which is struck b forward beat,

usual construction manner familiar to those depending heel the lay on. its moving the temple forward, the stand F projecting the temp eras the lay springs back, as is common 1 on the bracket G, for

in'g rearwardly extended arms 3, 4 at its 1n loom structures.

In. my present invention I mount bearings a rock-shaft 2 havinner and outerends, respectively, the arm 3 having at its extremity a lateral bend 5 to receive the coils 6 of a piece of spring wire.

'One end of the Wire is fixedly attached to the arm 3 and its other end 7 depends-and constitutes a feeler or detecting finger, arranged to rest upon the cloth as close as pos- Specificetion of Letters Patent. Application filed April 1 1909.

I sible to'the fell, see dotted lines Xed on the breast-beam, may board are Patented 'May 3,1910. Serial No. 437,308.

Fig. 2, but upon the occurrence of a;thin place or streak in the cloth the finger drops between the warps and allows 'rock-shaftfl to turn and lowerthe arm 4.

The rear end of the arm 4,-which latter is at the outer side of the'temple stand F, is-he'nt outward at 8 and is extended loosely through :glongitudinaL slot 9 in a dog 10 moifnted at 11- on an upright bracket 12 fixedly secured to the inner end of the knock off lever D. Nuts 13 screwed onto the bent end 8 ofthe arm 4, on each side of the slotted dog, prevent improper lateral movement of the latter.

Fi edly secured to the temple shank E by suitable nuts 14 is a bar 15, extended laterally therefrom and shown as upturned at its free'end at 16 to form a hunter, said hunter moving back and forth with each reciprocation of the temple and its shank, as will be apparen So long as the cloth passing beneath the detecting finger 7 is perfect the finger will be held up and the arm t will thereby be maintained elevated in the position. shown in Fig. 2, holding the dog 10 above and out of the path of the hunter 16. If the filling fails. however, and a thin place is'formed the detecting finger will at once sink be tween the warp threads and the the shaft 2 lowers the dog 10 into the path of the hunter 16, so that onthe next forward beat 'of the lay the hunter will hit the broadened end '10 push the dog forward, rocking the lever D to release the shipper C and thereby effect stoppage of the loom.

' Referring to Fig. 2 it will be seen that the lower frontportion of the end 1O of the dog is curved at 17, so that if the dog should drop into Bperative position while the lay is forward the hunter 16 will act upon the curved part 17 and temporarily lift the dog as the temple is projected on the back stroke of the lay.

I make no claim to the particular form of detecting finger herein shown as the same forms a part of the subject-1natter of United States Patent No. 908,459 granted January 5, 1909 to myself and another.

he structure is simple and efficient, the operation is practically instantaneous after detection of a thin place, and by mounting the detecting mechanism,

NT orino turning of of the dog,-Fig. 1, and

on the a temple- 11o t of a: thin through sai.

stand bracket such mechanism is adjusted when such bracket is adjusted. At such time the nuts l3 can be adjusted when neces sary,;and the hunter 16 can also be adjusted laterally by means of the nuts 14.

what I claim as newand desire to secure byLetters Patent is r 1. In a loom, areciprocating temple, a t-hin 'place detector, a shipper, releasing meanstherefor, including a rearwardly extended, pivoted do a hunter fixedly mounted on-and movab e with the temple, and having "its ;':forward end upturned, and means controlled by the detector to normall maintain the-dog" elevated above the path of the upturned end of the hunter, detection lace by the detector acting ri latter-xmeans to lower the dog mtb the pathofand to be moved by the hunter on-the'forward movement of the temple, to efl'ect shipper release. 4 a

l a loom, in combination, a reciproeating temple, .a hunter movable therewith,

including a longitudinally slotted, pivotall I mounted dog, a ,rockQshaft having attache rearwardly extended arms,a detecting finger depending. from one of said arms and. nor- Ina'lIy resting upon the cloth adjacent the fell, the other arm being out-turned and extended loosely through the slot in the dog and maintaining the latter-out of the path .of the hunter, andcmeanson and adjustable lengthwise of said arm and cotiperatin with opposite sides of the dog, to prevent ateral movement thereof, turning gof 'the-"rock shaft upon detection-of a thin place inflthe cloth acting through the second-named arm to move the do into the path ofthe bunter, to thereby e eat the actuation of the shipper releasing means. H r 1 In testimony whereof, I have signed my name to this specification, in the presence of two subscribin witnesses.- n

' SAYL RS DRURY EUBANKS.

Witnesses CHAS. Somrr, W. G. Lmnsar. 

